With that bit of social media swagger on Monday, @HillaryClinton joined Twitter.

Her shout-out is to Adam Smith and Stacy Lambe, the guys who last year started a meme by taking a photo of Clinton — in sunglasses and looking at her mobile device — and paring it with "texts from Hillary." They were often funny responses she supposedly sent to other famous folks' messages.

An example:

— President Obama: "Hey Hil, Whatchu doing?"

— Clinton: "Running the world."

Now Clinton is using that "texts from Hillary" photo on her Twitter page, And she's describing herself there this way: